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HomeNumerical simulation of the one meter drop test on a bar for the castor cask advanced and final analyses
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The report presents the numerical analysis of two one meter drop tests of a single ductile cast iron cask on a steel bar. This analysis is a follow-up to the analysis [1]. The cask comes from the CASTOR family with machined cooling fins in a region where impact occurs. In the first test, the impact is on the cask’s cooling fins whereas in the second test the impact is in an area where the fins have been locally machined away. The numerical analysis is based on an explicit dynamic analysis using the commercial finite element code ABAQUS extended with Python scripts to allow a parametric description of the problem. The report describes two sets of analyses. First a comparison to the model used in [1] was carried out together with advanced parameter variation simulations (advanced sensitivity analyses) and then the responses of the basic model are compared with the experimental results provided by GNS. The overall behavior of the model is qualitatively very similar to what was observed during the experiments. The quantitative differences between experimental and numerical responses are generally within 10% and up to 20% with some exceptions. A longer impact duration, (between 3 ms to 5 ms) when the cask is dropped on the fins in comparison to the flat target, is observed in both the analysis and the test. The advanced sensitivity analysis was performed to study the influence of parameters either identified in [1] as influential or not yet tested there. Based on results the final set of parameters values are given and the final analysis is carried out. The overall behavior of the model is qualitatively very similar to what was observed during the experiments.
- Published:
- Corporate author(s): Institute for Energy and Transport (Joint Research Centre)
- Personal author(s): Jakšić, Nikola ; Nilsson, Karl-Fredrik
- Themes: Energy research , Nuclear energy and safety
- Subject: container , nuclear safety , product design , radioactive waste , resistance of materials , simulation , storage of waste , testing
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| ISSN 1018-5593 | ISBN | DOI | Catalogue number LD-NB-22470-EN-C |
- Released on EU publications website:
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